@article{GDZPPN00232055X, title = {Cuspidal Projections of Space Curves.}, journal = {Mathematische Annalen}, volume = {255}, year = {1981}, pages = {95-120}, zbl = {0468.14010}, url = {http://dml.mathdoc.fr/item/GDZPPN00232055X} }
Piene, Ragni. Cuspidal Projections of Space Curves.. Mathematische Annalen, Tome 255 (1981) pp. 95-120. http://gdmltest.u-ga.fr/item/GDZPPN00232055X/